exhaust shaft meaning in Chinese

排气井
排气竖井

As stated in paragraph 2 of appendix to annex 4 . 8 of volume two of ifp , vitiated air from the tunnel is discharged vertically from exhaust shaft of the ventilation building
建议邀请书第二册附件4 . 8的附录的第2段注明，隧道的浊气会由通风大楼的抽气塔垂直排出。
When considering the emission pattern of vitiated air discharged from the exhaust shafts , proponents should refer to the details of the exhaust shaft , including the louvres through which vitiated air is discharged
在考虑抽气塔所排出浊气的排放模式时，建议者应参考抽气塔的详情，包括浊气在排出时所经过的疏格。
The progress of fires could be blocked by fireproof partitions and by ventilation systems that pressurize the floors both above and below the flames to contain smoke and heat , which would be vented out through exhaust shafts
防火隔间与通风系统都能阻滞火势蔓延；通风系统可以在起火楼层上下加压，将烟与热气聚在一处，再由排放管道排出。